Takayuki Ushikubo

Profile Information

Affiliation: Senior Researcher, Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology

Degree: Ph. D.(Mar, 2005, The University of Tokyo)

J-GLOBAL ID: 200901011857608429
researchmap Member ID: 1000368127

Research Interests

Research Areas

Natural sciences / Space and planetary science /

Research History

Sep, 2013 - Present

Research Scientist, Kochi Institute for Core Sample Research, JAMSTEC
Jul, 2008 - Aug, 2013

Assistant Scientist, University of Wisconsin-Madison
Jun, 2006 - Jun, 2008

Postdoctral Research Associate, University of Wisconsin-Madison
Jun, 2005 - May, 2006

Postdoctral Research Associate, Arizona State University
Apr, 2000 - Mar, 2001

Engineering Official, Ministry of the Environment, Goverment of Japan

Education

Apr, 2001 - Mar, 2005

Department of Earth and Planetary Science, Gradeuate School of Science, University of Tokyo
Apr, 1997 - Mar, 2000

Department of Earth and Planetary Physics, Gradeuate School of Science, University of Tokyo
Apr, 1995 - Mar, 1997

Department of Earth and Planetary Physics, Faculty of Science, University of Tokyo

Committee Memberships

Mar, 2016 - Mar, 2022

全国共同利用課題選定委員, 高知大学海洋コア総合研究センター

Papers

Oxygen isotope study of the Asuka-881020 CH chondrite II: Porphyritic chondrules

Daisuke Nakashima, Takaaki Noguchi, Takayuki Ushikubo, Makoto Kimura, Noriko Kita

Geochimica et Cosmochimica Acta, 373 292-307, May, 2024 Peer-reviewed
In situ sulfur isotope analysis of pyrite from the Ezuri Kuroko-type volcanogenic massive sulfide deposit, northeastern Japan: Contribution of microbial sulfate reduction to initial sulfide mineralization

Nozaki, T., Nagase, T., Ushikubo, T., Shimizu, K., Komuro, K.

Resource Geology, 74(1) e12328, Jan, 2024 Peer-reviewed
Oxygen isotope exchange between molten silicate spherules and ambient water vapor with nonzero relative velocity: Implication for chondrule formation environment

Sota Arakawa, Daiki Yamamoto, Takayuki Ushikubo, Hiroaki Kaneko, Hidekazu Tanaka, Shigenobu Hirose, Taishi Nakamoto

Icarus, 405 115690-115690, Nov, 2023 Peer-reviewed
SIMS matrix effects in oxygen isotope analysis of olivine and pyroxene: Application to Acfer 094 chondrite chondrules and reconsideration of the primitive chondrule minerals (PCM) line

Mingming Zhang, Kohei Fukuda, Michael J. Spicuzza, Guillaume Siron, Adriana Heimann, Alex J. Hammerstrom, Noriko T. Kita, Takayuki Ushikubo, John W. Valley

Chemical Geology, 608, Oct 5, 2022 Peer-reviewed
Si isotope ratio of radiolaria across Triassic–Jurassic transition in a pelagic deep-sea bedded chert (Inuyama, Japan)

Maximilien Bôle, Takayuki Ushikubo, Rie S. Hori, Peter O. Baumgartner, Yuki Nakai, Masayuki Ikeda

Global and Planetary Change, 215, Aug, 2022 Peer-reviewed
Sulfur isotope and trace element systematics in arc magmas: seeing through the degassing via a melt inclusion study of Kyushu Island volcanoes, Japan

Masataka Kawaguchi, Kenneth T Koga, Estelle Rose-Koga, Kenji Shimizu, Takayuki Ushikubo, Akira Yoshiasa

Journal of Petrology, Jul 1, 2022 Peer-reviewed
Water enrichment in the mid-ocean ridge by recycling of mantle wedge residue

Jia Liu, Chunhui Tao, Jianping Zhou, Kenji Shimizu, Wei Li, Jin Liang, Shili Liao, Takeshi Kuritani, Etienne Deloule, Takayuki Ushikubo …

Earth and Planetary Science Letters, 584 117455-117455, Apr, 2022 Peer-reviewed
A temporal shift of chondrule generation from the inner to outer Solar System inferred from oxygen isotopes and Al-Mg chronology of chondrules from primitive CM and CO chondrites

Fukuda, K., Tenner, T.J., Kimura, M., Tomioka, N., Siron, G., Ushikubo, T., Chaumard, N., Hertwig, A.T., Kita, N.T.

Geochimica et Cosmochimica Acta, 322 194-226, Apr, 2022 Peer-reviewed
The formation of Type B CAIs: Evolution from Type A CAIs

MacPherson, G.J., Krot, A.N., Kita, N.T., Bullock, E.S., Nagashima, K., Ushikubo, T., Ivanova, M.A.

Geochimica et Cosmochimica Acta, 321 343-374, Mar, 2022 Peer-reviewed
Modification for the matrix effect in SIMS-derived water contents of silicate glasses

Kenji Shimizu, Takayuki Ushikubo, Takeshi Kuritani, Naoto Hirano, Shigeru Yamashita

GEOCHEMICAL JOURNAL, 56(6) 223-230, 2022 Peer-reviewed
Natal origin of Pacific bluefin tuna Thunnus orientalis determined by SIMS oxygen isotope analysis of otoliths

Yulina Hane, Takayuki Ushikubo, Yusuke Yokoyama, Yosuke Miyairi, Shingo Kimura

PloS one, 17(8) e0272850, 2022 Peer-reviewed
Tracing the subducting Pacific slab to the mantle transition zone with hydrogen isotopes

Takeshi Kuritani, Kenji Shimizu, Takayuki Ushikubo, Qun Ke Xia, Jia Liu, Mitsuhiro Nakagawa, Hajime Taniuchi, Eiichi Sato, Nobuo Doi

Scientific Reports, 11(1), Dec, 2021 Peer-reviewed
Conditions of magma generation at the Me-akan volcano, northern Japan

Takeshi Kuritani, Eiichi Sato, Keiji Wada, Akiko Matsumoto, Mitsuhiro Nakagawa, Dapeng Zhao, Kenji Shimizu, Takayuki Ushikubo

Journal of Volcanology and Geothermal Research, 417, Sep, 2021 Peer-reviewed
Microbial sulfate reduction plays an important role at the initial stage of subseafloor sulfide mineralization

Tatsuo Nozaki, Toshiro Nagase, Takayuki Ushikubo, Kenji Shimizu, Jun-ichiro Ishibashi

Geology, 49(2) 222-227, Feb 1, 2021 Peer-reviewed
Persistent gas emission originating from a deep basaltic magma reservoir of an active volcano: the case of Aso volcano, Japan

Masataka Kawaguchi, Toshiaki Hasenaka, Kenneth T. Koga, Estelle F. Rose-Koga, Atsushi Yasuda, Natsumi Hokanishi, Yasushi Mori, Kenji Shimizu, Takayuki Ushikubo

Contributions to Mineralogy and Petrology, 176(1), Jan, 2021 Peer-reviewed
Oxygen-isotope systematics of chondrules and olivine fragments from Tagish Lake C2 chondrite: Implications of chondrule-forming regions in protoplanetary disk

Ushikubo, T., Kimura, M.

Geochimica et Cosmochimica Acta, 293 328-343, 2021 Peer-reviewedLead authorCorresponding author
Reconstruction of temperature experienced by Pacific bluefin tuna Thunnus orientalis larvae using SIMS and microvolume CF-IRMS otolith oxygen isotope analyses

Hane, Y., Kimura, S., Yokoyama, Y., Miyairi, Y., Ushikubo, T., Ishimura, T., Ogawa, N., Aono, T., Nishida, K.

Marine Ecology Progress Series, 649 175-188, 2020 Peer-reviewed
Temporal Evolution of Proto-Izu-Bonin-Mariana Arc Volcanism over 10 Myr: Constraints from Statistical Analysis of Melt Inclusion Compositions

Hamada, M., Iwamori, H., Brandl, P.A., Ushikubo, T., Shimizu, K., Ito, M., Li, H., Savov, I.P.

Journal of Petrology, 61(1), 2020 Peer-reviewed
Oxygen isotope study of the Asuka-881020 CH chondrite I: Non-porphyritic chondrules

Nakashima, D., Kimura, M., Yamada, K., Noguchi, T., Ushikubo, T., Kita, N.

Geochimica et Cosmochimica Acta, 290 180-200, 2020 Peer-reviewed
Determination of total CO<inf>2</inf> in melt inclusions with shrinkage bubbles

Hanyu, T., Yamamoto, J., Kimoto, K., Shimizu, K., Ushikubo, T.

Chemical Geology, 557, 2020 Peer-reviewed

Misc.

An acompanying story of the study on Lithium in Zircon

Takayuki Ushikubo

Journal of the Mass Spectrometry Society of Japan, 70(2) 135-136, Apr, 2022 Invited
微なるかな微なるかな、地球初期に至るー微小領域分析で挑む大陸形成の始まりー

牛久保孝行

Blue Earth 海と地球の情報誌, 29(148) 28-31, Mar, 2017
Precise Isotope Analysis : Development of Analytical Protocols and Applications of High Precision in situ Isotope Analyses by SIMS

2016(10) 390-396, Oct, 2016 Peer-reviewedInvited
エポックメイキングな隕石たち（その7）：Acfer 094隕石～初期太陽系微粒子の宝庫～

牛久保孝行

遊星人（日本惑星科学会誌）, 25(1) 8-12, Mar, 2016 Peer-reviewedInvited
高精度・微小領域酸素同位体局所分析の取り組み

牛久保孝行

遊星人（日本惑星科学会誌）, 19(4) 287-294, Dec, 2010 Peer-reviewed
Chondrules in short-period comet 81P/Wild 2 recovered by the Stardust mission

NAKAMURA Tomoki, NOGUCHI Takaaki, TSUCHIYAMA Akira, USHIKUBO Takayuki, KITA Noriko T., VALLEY John W., ZOLENSKY Michael E., KAKAZU Yuki, SAKAMOTO Kanako, MASHIO Etsuko …

Chikyukagaku, 43(4) 143-153, 2009

Books and Other Publications

Chondrules: Records of Protoplanetary Disk Processes

Tenner T. J, Ushikubo T, Nakashima D, Schrader D. L, Weisberg M. K, Kimura M, Kita N. T (Role: Joint author, Section 8: Oxygen Isotope Characteristics of Chondrules from Recent Studies by Secondary Ion Mass Spectrometry)

Cambridge University Press, Jul, 2018

Presentations

On-siteと帰還試料の酸素同位体比分析の重要性

牛久保孝行

Comet Interceptor + 次世代小天体SR合同サイエンス会合, Sep 13, 2023
Oxygen and silicon isotope systematics of zircons from Izu-Bonin-Mariana arc and the Izu collision zone, a modern analogue of the early evolved crust formation

Ushikubo T, Tani K

6th International Archean Symposium, Jul 25, 2023
CM, CRコンドライトとTagish Lake隕石の炭酸塩の炭素、酸素同位体比組成

牛久保孝行, 山口亮, Michael K. Weisberg, Denton S. Ebel, 木村眞

JpGU 2023, May 26, 2023
Evidence for high d13C and D17O fluid in small bodies accreted in a cold and distant region from the Sun

Ushikubo T, Yamaguchi A, Weisberg M. K, Kimura M, Ebel D. S

Lunar and Planetary Science Conference 2023, Mar 15, 2023
無水鉱物に記録された隕石母天体集積領域の氷の酸素同位体比情報を読み解く

牛久保孝行

新学術領域「星・惑星形成」2022年度大研究会, Feb 20, 2023
SIMSを用いた硫化鉱物の局所硫黄2～4同位体比分析高精度化への取り組み

牛久保孝行, 清水健二, 野崎達生, 鳥本淳司, 長瀬敏郎, 久保田勇祐, 中川麻悠子, 上野雄一郎

2022年度日本地球化学会, Sep 7, 2022
太陽系始原ダストの物質科学

牛久保孝行

始原天体ワークショップ, Mar 15, 2022 Invited
Consistently high d13C carbonates in CR chondrites: Implication for accreted ice in a cold and distant region from the Sun

Ushikubo T, Yamaguchi A, Weisberg M. K, Kimura M, Ebel D. S

Lunar and Planetary Science Conference 2022, Mar 7, 2022
CR vs. CM: 炭素質コンドライトの炭酸塩とコンドルールの同位体組成の比較

牛久保孝行

水惑星全体会議, Mar 2, 2022
Oxygen isotopic systematics of chondrules in Tagish Lake (C2) and implications of volatiles in the protoplanetary disk

Takayuki Ushikubo, Makoto Kimura

JpGU 2021, Jun 5, 2021
隕石試料の酸素・炭素同位体比研究の進捗報告

牛久保孝行

水惑星学全体会議, Mar 9, 2021
Oxygen isotope systematics of chondrules and olivine fragments from Tagish Lake C2 chondrite

USHIKUBO T, KIMURA M

The 11th Symposium on Polar Science, Dec 3, 2020
コンドルールから原始惑星系円盤での固体粒子の移動を探る

牛久保孝行

新学術領域星惑星形成大研究会, Oct 1, 2020
Recent progress of in situ sulfur 2 and 4 isotope measurements at Kochi Institute, JAMSTEC

T. Ushikubo, K. Shimizu, T. Nozaki, T. Nagase

JpGU 2020, Jul 14, 2020
無水鉱物の酸素同位体比から水の存在を探る

牛久保孝行

水惑星学全体会議, Nov 12, 2019
Development for in-situ volatile element abundances, and hydrogen and sulfur 2-isotope analyses of silicate glasses by SIMS

USHIKUBO T, SHIMIZU K

82nd Annual Meeting for the Meteoritical Society, Jul 9, 2019
Characteristics of oxygen isotope ratios of chondrules and isolated olivine grains from Tagish Lake C2 chondrite

Takayuki Ushikubo, Makoto Kimura

JpGU 2019, May 27, 2019
Oxygen isotope systematics of chondrules and isolated olivine grains from the Tagish Lake C2 chondrite

USHIKUBO T, KIMURA M

Lunar and Planetary Science Conference L, Mar 20, 2019
In situ oxygen three-isotope analysis of carbonates with 15um and 3um beam: Preliminary results

USHIKUBO T, FUJIYA W

Hayabusa 2018, Dec 6, 2018
Los condrulos no vuelan: SIMS oxygen isotope studies of chondrules

USHIKUBO Takayuki

CPS Seminar, Jun 28, 2018 Invited

Professional Memberships

Research Projects

An oxygen isotope study of small chondrules: search for evidence of dust migration in the protoplanetary disk

Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Research (Exploratory), Grant-in-Aid for Challenging Research (Exploratory), Japan Society for the Promotion of Science, Jun, 2022 - Mar, 2025
The sulfur 4-isotope study for environment of the early Earth

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), Grant-in-Aid for Scientific Research (B), Japan Society for the Promotion of Science, Apr, 2020 - Mar, 2024
The isotope study of carbonates in chondrites for understanding volatile sources in asteroids

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area), Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area), Japan Society for the Promotion of Science, Apr, 2020 - Mar, 2022
Challenging research on Earth and Planetary surface environment by in-situ high precision isotope analyses of fine-grained carbonate minerals

Grants-in-Aid for Scientific Research Challenging Research (Exploratory), Challenging Research (Exploratory), Japan Society for the Promotion of Science, Jun, 2017 - Mar, 2020
In-situ isotope analysis of light elements for better understanding of early Earth's continental crustal evolution

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2014 - Mar, 2017

USHIKUBO Takayuki

Social Activities

サイエンスカフェ for 高校生

Lecturer

高知みらい科学館, Feb 2, 2020
オーシャンカフェ

Lecturer

海のみらい静岡友の会, Sep 7, 2018
シンポジウム：地球の歴史と五島列島

Lecturer

五島列島ジオパーク推進協議会, Mar 3, 2018
カメカテクニカルセミナー

Lecturer

アメテック株式会社カメカ事業部, Nov 11, 2016
JAMSTEC横浜研究所公開セミナー

Lecturer

JAMSTEC, Apr 16, 2016
桜蔭学園学内講演会

Lecturer

桜蔭中学・高等学校, Jun 5, 2015

Profile Information

Research Interests

Research Areas

Research History

Education

Committee Memberships

Papers

Misc.

Books and Other Publications

Presentations

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Research Projects

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